Because Unicode data always uses an even number of bytes, use caution when you convert binary or varbinary to or from Unicode supported data types. For example, the following conversion does not return a hexadecimal value of 41; it returns 4100: SELECT CAST(CAST(0x41 AS nvarchar) AS varbinary) .
noun. The definition of a module is a standard unit of measurement in building planning, or a detachable part of a whole, or an independent unit that is part of a whole.
Definition of module for English Language Learners. : 1  one of a set of parts that can be connected or combined to build or complete something. : 2  a part of a computer or computer program that does a particular job. : 3  a part of a space vehicle that can work alone.